Paleoflood hydrology, as it developed in the 1970s, identified slackwater flood deposits (SWD) as the primary indicator of a historically high stage of a river, i.e., a “paleostage indicator.” Such SWDs are believed to have formed in eddies at the mouths of tributaries of rivers that caused sedimentation of sands and silts in topographically elevated locales relative to the present position of such rivers. If undisturbed by even larger floods, there is a reasonable likelihood that pedogenic processes will create a soil horizon within the SWD that can be age-dated using 14C. Thus an approximate age of the paleoflood...